Phylum Echinodermata 棘皮動物門


Class Echinoidea 海膽綱


Family Laganidae 餅乾海膽科


Scientific name Laganum decagonal


Chinese name 十角餅乾海膽


Author Blainville, 1827


Size 34x32x6mm


Description Sea Urchin, test diameter: 34mm, taken in Olango Island, Cebu, Philippines.




 


 


Laganum decagonal, Aboral view(反口面).



 


 


Laganum decagonal, Petaloid area (瓣狀區域)



 


 


Laganum decagonal, Apical system (頂系)



 


 


Laganum decagonal, Oral view(口面).



 


 


Laganum decagonal, Peristome (口圍) & Periproct (肛圍).



 


 


Laganum decagonal, Lt. lateral aboral view(左側反口面).




 


 


Laganum decagonal, Lt. lateral view(左側面).



 


 


Laganum decagonal, Lt. lateral oral view(左側口面).


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